Siemens Low Voltage RP1 Unassembled Lighting Panel. Dimensions (H x W x D) IN: 50.0 x 20.0 x 5.75. 3-Phase 4-Wire allows 54 circuits user selects Main Device (Lug/Breaker). Rated 480Y/277V (250A). Special features: tin-plated aluminum main bus, subfeed space included
